Loose-leaf book



Nov. 24,1925. 4 1,562,918

R. C. RUSSELL ALoosxs LEAF BooK Filed July 2S. 1925 2 Sheets-Sheet l INI"Il I1 i I g MH 2 Sheets-Sheet 2 R. c. RUSSELL LOOSE LEAF BOOK FiledJuly 2a, 1925 Nov. 24, 1925- atroz wu- Patented Nov. 24, 1925.

ROBERT C. RUSSELL, OF PITTSBURGH, PENNSYLVANA.

LOOSE-LEAF BOOK.

Application filed July 28, 1925.

To all whom it may concern:

Be it known that I, ROBERT C. RUssnLL, a citizen of the United States,and resident oi' Pittsburgh, in the county of Allegheny and State o'l'Pennsylvania, have invented certain new and useful Improvements inLoose-Leaf Books; and I do hereby declare the following to be a lull`clear, and exact description of the invention, suoli as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in loose lealz books, and moreparticularly to that type in which the members which pass through theleaves are connected with the covers of the book through the medium oflongitudinally movable devices which cooperate with the leaf-penetratingmem bers to lock them normally in position.

An object of my present invention is to provide loose leafsecuringdevices which shall be simple in construction; which shallprovide positive and effectual locking means, and which shall be readilyoperable to release a leaf or leaves or to facilitate the insertion oi aleaf or leaves.

Vith this and other objects in view.` the invention consists in certainnovel tentures oit construction and combination of parts as hereinafterset -Iortli and point-ed out in the claims.

In the accompanying drawings;

Figure l is a tace view showing the back and cover members of a book andillustrate ing the application oil my improvements;

Figure 2 is a View 1n section on the lineY Figure 3 is a view in sectionon the line 3-3 of Figure l;

Figure 4 is a fragmentary view partly in elevation and partly inhorizontal. section, and

Figure 5 is a vieW of a key which may be employed for manipulating thelocking devices.

The cover members of a book are indicated, 1, 1, and the back member at2. To each cover member, a plate 3 is secured, and

Serial No. 46,604.

each plate is bent upon itself in a manner to provide tubular portionsor sleeves 4 which overlie the respective edge portions ot the backmember 2. The overlying portions ot the plates 3 in rear of the tubularor sleeve portions 4 are su'lliciently spaced apart to provide ways forthe accommodation ol locking bars 5. Each bar may be made flat in crosssection and each is provided a intervals with oiiset pins 6 disposedparallel with and spaced from the ban-one pin on each bar being madeslightly longer than the pin or pins in adi-*ance ot the saine, and thepins 6 are movable in the tubes or sleeves 4 and are adapted to be madeto extend across notches 7 in said tubes or sleeves.

Links or bars 8 pass through suitable openings in the base portions ofthe leaves 9 of the book and at their ends, said links are formed Witheyes l() which enter the tubes or sleeves 4 so as to align with thebases of the latter and receive the pins G on the locking bars 5 whenthe latter are moved longitudinally in a manner to causo said pins tospan the notches 7 in said tubes.

ln the embodiment of the invention shown in the drawings, two lockingbars are provided at each of the edge portions of 'the back member 2 andthe inner edge portions oli the respective cover members l, but ildesired, locking bars may be provided at one side only of the back andthe links hinged to the opposite cover member in any suitable manner.

The locking bars of each pair are provided with resilient fingers 11, 11projecting relatively in reverse directions and the inner end portion ofthe linger on one locking bar is adapted to overlap the inner endportion ot the adjacent locking bar. The overlapping portions ol thelingers ot the locking bars of each pair are formed with ratchet teeth,and the resilience of said finger is such that the ratchet teeth on saidlingers are caused to intermesh when the lingers are in overlappingrelation, thus securely locking' said bars 5 and the pins 6 which theycarry, against longitudinal movement. The

cross links 8 are therefore positively locked in place.

Each plate 3 is provided ivitli a hole or socket l2 located over theoverlapping poi'- tions of the locking lingers il of each pair oflocking bars, and at respective sides of the paths of said fingers, eachplate 3 is provided with holes 13., 13. The holes 12 and 1S are intendedfor the accoinn'iodation of a key 14E, the latter being provided at oneend with a central projection 1.5 to enter the hole l2, and with tvvobent lugs 16 to enter the holes 13 and become disposed at opposite sidesof the resilient locking fingers respectively of the tivo locking bars.By noiv turning the key on the projection l5 as a fiilcriini, thelateral pressure in opposite directions on the locking fingers by thelugs 1G, will canse the inteiineshing portions of said fingers to beseparated and therefore released from each other. The opera-tor may noivwithdraw the locking bars (by engaging the end portions l? thereof)distances sufficient to Withdraw the pins (i from the eyes 10 at one endof the cross links 8, thus releasing the latter. In again locking thecross links, it is simply necessary to insert perfoiated end portionsthereof into the notches T, and press the locking bars, respectively inopposite directions, when the pins 6 Will enter the perforations iii thelinks and the toot-hed fingers 1l ivill become interlockedautomatically.

Having fully described my invention what I claim as new and desire tosecure by Iletteis-Patents, is:-

1. In a loose leaf book, the combination with guide means, and crosslinks each having a perforated end portion, of a plurality of lockingbars movable iii the saine guide means and provided ivith pins to engagethe perforated end portions of said links, and means for locking saidplurality of locking bars against relative movement in said guide means.

2. In a loose leaf book, the combination with guide means and crosslinks, of locking bars movable in said guide means and provided ivithnieans to engage the cross links, said locking bars having interlocking`connection with each other, and means to release said locking bars fromeach other. A

3. In a loose leaf book, the combination with guide means, and crosslinks each having a perforated end portion, of tivo locking bars movablein said guide means and provided with pins to engage the perforated endportions of said links, and iiieaiis for interlocking said locking bars.

et. In a loose leaf book, the combination vvith guide means, and crosslinks each having a perforated end portion, of locking` bars movable insaid guide ineans and provided ivith pins to engA V`je the perforatedend portions of said links, means for intern locking said locking bars,and a key for operating said interlocking means to release said lockingbars from each other.

5. In a loose leaf book, the combination with guide means, and crosslinks, each having a perforated end portion, of locking bars movable insaid guide means and provided with pins to engage the perforated end.por tions of said links, interlocking members arried by said lockingbars, the member on at least one of said locking bars being resilientand means for separating said ineinbers to release the locking bars.

6. In a loose leaf book, the combination with notched guide means, andcross links having perforated end portions to enter the notches of theguide means, of tivo locking bars movable in said guide ineans andprovided ivith pins to extend across the notches in the guide ineans andthrough the perforated portions of said links, resilient iingei's onsaid locking bars, the free end portion of the 'linger on. one lockingbar adapted to overlap the free end portion of the linger on the otherlockingl bar, the overlapping portions of said resilient fingers havingin terlockiiig portions, and a key for separating said lingers torelease the locking bars.

T. In a loose leaf book, the combination ivitli notched guide means, andcross links having perforated end portions to enter the notches of theguide means, of tvvo locking bars movable in said guide means andprovided with )ins to extend across the notches in the guide means andthrough the perforated portions of said links, resilient lingers on saidlocking bais, the free end portion of the linger on one locking baradapted to overlap the free end portion of the finger on the otherlocking bar, the overlapping portions of the fingers of the tivo lockingbars having internieshing teeth, and means for separating said lingersto release said locking hars.

8. In a loose leaf book, the combination with notched guiding means, andcross links` having perforated portions to enter the notches of theguiding means, of tivo locking bars movable in said guiding ineans andprovided ivith pins to extend across the notches of the guiding meansand through the perforated cross links, resilient fingers on saidlocking bars and having interlocking relation to each other, saidguiding means having holes at respective sides of the fin gers on thelocking bars, and a key lhaving projections to enter said holesandfengage the respective fingers whereby rurningof the key will causeseparation of the resilient fingers to release the locking bars.

9. In a loose leaf book, the combination' ivitli notched guiding means,and cross links i having perforated portions to enter the notches of theguidlng means, of tivo locking bars inoifable in said guiding ineans andprovided with pins to extend across the notches o'l the guiding meansand through the perforated cross links, resilient fingers ou saidlooking bars and having interlocking relation to each other, saidguiding means having holes at respective sides of the ingers on thelocking bars and also having an intermediate hole, and a key havingprojections to enter the tivo Erst-mentioned holes and engage therespective lingers and said key also having an intermediate projectionto enter said intermediate hole, whereby turning of the key will causeseparation ol the resilient fingers to release the locking bars.

In testimony whereof, I have signed this speci ication.

ROBERT C. RUSSELL.

